In certain condition, DC Joule annealing can induce circular anisotropy among the ferro-magnetic layer of the samples, thus increases the ratio of the GMI effect of the samples.
一定条件下进行电流退火能使样品的磁结构产生圆周各向异性，从而提高样品的巨磁阻抗效应。
2
It is proved that the hardness of ferromagnetic materials can be measured by the Barkhausen Noise Method.
本文提出采用巴豪森噪声法测量铁磁材料的硬度。
3
Experimental results indicated that there is a monotonic relationship between the hardness of ferromagnetic materials and Barkhausen Noise strength, MP.